Miner&#39;s lamp.



i 1. s. SHERMAN.

MINEBS LAMP. APPLICATION FILED SEPT-12,1914.

Patented Jan. 11,1916.

s'rATEs PATE A Moon S. SHERMAN, or summon, ILLINOIS.

MINER S LAMP.

To all whom it may concern:

Be it known that I, JACOB S. SHERMAN, a citizen of the United States, residin'gat Staunton, Illinois, have invented a certain new and useful Improvement in Miners Lamps, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure l is a side elevational view of a lamp of my improved construction. Fig. 2 is a vertical section taken through the center of the carbid container forming a part of my improved lamp.

My invention relates generally to lamps and more particularly to miners lamps wherein carbid and water are utilized for producing acetylene gas. a

The principal object of my invention is to provide an improved form of carbid containerrfor miners acetylene lamps and which container is provided with one or more annular ribs on its lower portion, which ribs not only strengthen the container, but provide means whereby the miner or user of the a lamp can readily grip the container when the same is detached from the water reservoir of the lamp, and which ribs also provide hammering surfaces which are used when the waste or softened carbid is discharged from the container.

In miners acetylene lamps the action of the water on the carbid in producing acetylene gas creates a certain degree of heat, and thus the carbid container becomes too hot to be easily handled by an operator when said container is unscrewed from the water reservoir and by providing one or more annular ribs, the outer surfaces of which are milled, the operator can obtain suflicient grip on the container to unscrew the same from the water reservoir even while said container is comparatively hot.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts, herein more fully described and:

claimed.

Referring by numerals to the accompanying drawings, 1 designates a container for water and which container forms the upper portion of a miners lamp of ordinary con. struction. Screw seated on the lower end Specification of Letterslatent. Patented Jan, 11 1916 Application filed September 12, 1914. Serial No. 861,438. i I I of this water container or reservoir is a cup 2, preferably pressed or spun from suitable sheet metal, which cup forms the carbid container of the lamp. Formed on said cup nearfthe lower end thereof is an outwardly projecting annular rib or bead 8, the outer surface of which is milled or corrugated as designated by 4, and formed in the body of the cup a short distance above this lower rib or bead is a second outwardly projecting rib or bead 5, the outer surface of which is milled or corrugated as designated by 6. The upper portion of the wall of the cup or container is contracted as designated by 7 and this contracted upper end ispressed to FFECE, I

form athread which is adapted toengage in a corresponding thread in the lower portion of the water container 1. As hereinbefore stated, the carbid cup becomes heated as a result of the water attacking the carbid in said cup, and under such conditions it is a comparatively hard matter for an operator to unscrew the carbid cup by grasping the smooth outer surface of said cup, but where said cup is provided with one or more outwardly projecting ribs or beads, the outer surfaces of which are roughened, said cup may be readily grasped and unscrewed from the water reservoir and which action takes place when it becomes necessary to refill or exchange the carbid cups.

In removing the waste or spent carbid from the carbid cups of miners lamps it is usually the practice to invert the cup after the same has been removed from the water reservoir, and to strike said cup against a solid object, and where such action takes place with cups of ordinary construction, the same are bent and indented, but by providing one or more annular ribs or beads on said cup, the same is reinforced and hammering surfaces are formed which tend to prevent the cup from being bent or indented when the same is tapped against an object to remove the waste carbid.

A carbid cup of my improved construction is comparatively simple, can be easily and cheaply manufactured, and is adapted for practically all forms'of miners acetybid cup can be made and substituted for those herein shown and described, without departing from the spirit of my invention i the scope of which is set forth in the a pended claim. v v I claim:

As a new article of manufacture, a miners projecting combined hammering and grip- I ping bead pressed from the metal forming said wall at the point where the same unites with the bottom, an outwardly projecting bead pressed from the metal in the wallat a cpointia substantial distance above the combined hammering and gripplng head, the

"outer faces of both of said beads being milled and the upper end of said vertical wall being contracted and having a thread pressed therein.

In testimony whereof I hereunto aflix'my signature'in the presence of two witnesses, this 10th day of September, 1914.

JACOB s. SHERMAN;

Witnesses: Y

M. P. SMITH, LAURA-MEYER.

Copies of this patent may be obtained for five cents each, by addressing, the Commissioner ofPatents', Washington, D. G. 

